Question

If 30% of the girls who attended seminar on topic B are married, then find the number of girls who are unmarried from the same seminar topic.

Q: Answer-If 30% of the girls who attended seminar on topic B are married, then find the number of girls who a...

Total number of students attended seminar on topic B 40100 500 200 Total number of students attended seminar on topic C 20100 500 100 Number of boys attended seminar on topic B 35 200 120 Number of girls attended seminar on topic B 25 200 80 Number of boys attended seminar on topic A 120 - 100 20 Number of boys attended seminar on topic C 14 100 25 Number of girls attended seminar on topic C 34 100 75 Number of boys attended seminar on topic D 150 - 90 60 Total number of students attended seminar on topic A 500 200 100 150 50 Number of girls attended seminar on topic A 50 - 20 30 Number of unmarried girls who attended seminar on topic B 70100 80 56

Study the following information carefully and answer the given questions: In a college there are 500 students who have attended seminars on four different topics viz. A, B, C and
D. Forty percent of the students attended seminar on topic
B. Twenty percent of the students attended seminar on topic
C. The ratio of the number of boys to number of girls attended seminar on topic B is 3:2. Number of students attended seminar on topic D is 150. Number of boys attended seminar on topic A is 100 less than number of boys attended seminar on topic
B. The ratio of the number of girls to number of boys attended seminar on topic C is 3:1. 90 girls attended seminar on topic
D.

A 55

B 56

C 50

D 52

E None of these

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